[article]
| Titre : |
Synthesis and properties of di-n-hexadecyl-a,ω-alkyl bisphosphate surfactants |
| Type de document : |
texte imprimé |
| Auteurs : |
P. Tyagi, Auteur ; R. Tyagi, Auteur |
| Année de publication : |
2010 |
| Article en page(s) : |
p. 232-237 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Surfactants
|
| Tags : |
Surfactants 'Hexadecyl phosphate' '1,4-dibromo butane' 1,6-dibromo hexane' '1,8-dibromo octane' 'Bis phosphoric acid' |
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
Amphipatic compounds with connecting group between two lipophilic groups were prepared by phosphorylating a long chain alcohol (hexadecanol) with pyrophosphoric acid to prepare hexadecyl phosphate. Then the resulting hexadecyl phosphate was used to prepare bisphosphate surfactants with terminal dibromo alkanes viz. 1,4-dibromo butane or 1,6-dibromo hexane or 1,8-dibromo octane using acetonitrile as solvent. The structure of synthesized products were verified by modern analytical techniques viz. FT-IR, and 1H-NMR. The disodium salts of bisphosphate surfactants were obtained by neutralization of free acid with sodium hydroxide. The performance properties viz. foaming, wetting, emulsifying ability and anionic content of synthesized surfactants were also evaluated. The synthesized bisphosphate surfactant with 1,6-dibromo hexane possessed maximum anionic content and showed good water solubility, foaming, wetting, and emulsifying ability compared to conventional analogs. |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9802 |
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 47, N° 4/2010 (07-08/2010) . - p. 232-237
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Synthesis and properties of di-n-hexadecyl-a,ω-alkyl bisphosphate surfactants in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 47, N° 4/2010 (07-08/2010)
